The New Groundwater Modeling System

Introducing GMS 8.1. The most intuitive and capable environment
for creating and visualizing groundwater simulations in true 3D.

“GMS has been a valuable tool in the construction and evaluation of regional groundwater flow models. The ability to rapidly visualize results is a great asset in model development and in communicating results to cooperators and the public...”

     - John Czarnecki, Ph.D., Hydrologist
       USGS Arkansas Water Science Center

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Tutorials & Videos

Get up to speed on GMS with our
e-learning tools including step-by-step tutorials and how-to videos. more

Advanced 3D Modeling

GMS is the premier groundwater software to develop, characterize & visualize models in a 3D environment. more

Why MODFLOW with GMS?

GMS provides advanced 3D groundwater modeling and visualization with MODFLOW. more

Software Development

Work with our development team to create custom software solutions to meet specific project needs. more

Talk to Sales

Speak with a knowledgeable sales representative to learn more about our products and get your questions answered.

Visit the Wiki or Forum

Visit the XMS Wiki to learn more or interact with the user community and find answers to questions on our forums.

Contact Support

We provide phone and email technical support to all current license holders.

Get Training

Get hands-on training from modeling experts - attend a scheduled course or have us
come to you.

Consult with Experts

Take advantage of a consulting team with a proven track record and years of experience in water modeling.